diff --git a/bme280.py b/bme280.py
index c63d80c..b9f4548 100644
--- a/bme280.py
+++ b/bme280.py
@@ -85,7 +85,8 @@ class BME280:
             self._device.readU8(BME280_REGISTER_DIG_H5) >> 4 & 0x0F)
 
 
-        self._device.write8(BME280_REGISTER_CONTROL, 0x3F)
+        self.i2c.writeto_mem(self.address, BME280_REGISTER_CONTROL,
+                             bytearray([0x3F]))
         self.t_fine = 0
 
     def read_raw_data(self):
@@ -99,7 +100,6 @@ class BME280:
         self.i2c.writeto_mem(self.address, BME280_REGISTER_CONTROL_HUM,
                              bytearray([meas]))
         meas = self._mode << 5 | self._mode << 2 | 1
-        self._device.write8(BME280_REGISTER_CONTROL, meas)
         self.i2c.writeto_mem(self.address, BME280_REGISTER_CONTROL,
                              bytearray([meas]))
 
diff --git a/i2c_device.py b/i2c_device.py
index 30fa73e..fccdbea 100644
--- a/i2c_device.py
+++ b/i2c_device.py
@@ -45,18 +45,6 @@ class Device:
         self._address = address
         self._i2c = i2c
 
-    def writeRaw8(self, value):
-        """Write an 8-bit value on the bus (without register)."""
-        buf = bytearray(1)
-        buf[0] = value & 0xFF
-        self._i2c.writeto(self._address, buf)
-
-    def write8(self, register, value):
-        """Write an 8-bit value to the specified register."""
-        buf = bytearray(1)
-        buf[0] = value & 0xFF
-        self._i2c.writeto_mem(self._address, register, buf)
-
     def readRaw8(self):
         """Read an 8-bit value on the bus (without register)."""
         return int.from_bytes(self._i2c.readfrom(self._address, 1)) & 0xFF